It's interesting to see people so worked up over this.
Jared Diamond, professor of evolutionary biology and Pulitzer Prize winner, says: "Those astronomers now preparing again to beam radio signals out to hoped-for extraterrestrials are naive, even dangerous."
I've always expressed disdain for SETI@home, but this is even more useless, though perhaps less wasteful:
Cosmic Connexion, a firm based near Cape Canaveral in Florida, invites you to e-mail your messages to them and they will then beam them, free, into space and "introduce you to extraterrestrials."
Today MySpace, tomorrow MyUniverse. Just imagine the time sink of approving all those friend requests ...
Is the search for aliens such a good idea?